Home / 172,213.68-258,321.34-52,271.66

Finding the Fourth Proportional to 172,213.68, 258,321.34 and 52,271.66

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Solution

The fourth proportional to 172,213.68, 258,321.34 and 52,271.66 is: 78,407.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,213.68 : 258,321.34 = 52,271.66 : x
  2. Step 2: Convert to fraction form
    172,213.68/258,321.34 = 52,271.66/x
  3. Step 3: Cross multiply
    172,213.68x = 258,321.34 × 52,271.66
  4. Step 4: Simplify right side
    172,213.68x = 13,502,885,255.22
  5. Step 5: Solve for x
    x = 13,502,885,255.22/172,213.68
  6. Step 6: Final answer
    x = 78,407.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.